Early hCG Levels?

Hi all! It’s my first pregnancy and I’m just anxious.

I’m 36 and high risk due to history of trauma surgery (related to my digestive system, not reproductive) and my HSG suggested I might have one blocked fallopian tube.

I tested positive on 10 dpo. My hCG was 186 on 12 dpo and 286 on 14 dpo. I am soooo nervous because it didn’t double. I know the rule of thumb is no longer it must double in super early days, but did anyone have a similar experience (viable or nonviable pregnancy)?

I looked at Betabase and I’m in the average on both, I just was so hoping I’d be at like 400 or something after 48 hours…

I’m having my hCG retested tomorrow and should have more information, I was just hoping someone may have some comforting (or realistic) anecdotal information.

Thank you!